Hello myglc2, myglc2 <myg...@gmail.com> writes:
> On 04/10/2017 at 10:22 Maxim Cournoyer writes: > >> Hi myglc2! >> >> On Mon, Apr 10, 2017 at 2:28 AM, myglc2 <myg...@gmail.com> wrote: >>> >>> On 04/05/2017 at 16:56 Ludovic Courtès writes: >>> >>> > civodul pushed a commit to branch master >>> > in repository guix. >>> > >>> > commit a0b87ef8ec7735aa42cf35d380e9cff04f3236f3 >>> > Author: Maxim Cournoyer <maxim.courno...@gmail.com> >>> > Date: Wed Apr 5 01:09:22 2017 -0700 >>> [...] >>> >>> So now q'guix package -m' produces messages like ... >>> >>> guix package -m g1.scm >>> installing new manifest from 'g1.scm' with 22 entries >>> substitute: updating list of substitutes from >>> 'https://mirror.hydra.gnu.org'... 100.0% >>> The following derivations will be built: >>> /gnu/store/smyjh63avay2gb6yq47h3hrlyxfrsajp-profile.drv >>> /gnu/store/ygp7n87177fngqqpb5l5bkkba5cawcvh-gtk-icon-themes.drv >>> /gnu/store/wrad8m1vhck9bb7dzqqlxb03rq1ifsm8-gtk-im-modules.drv >>> /gnu/store/qv12155lx8y195my98970mmfawqpnrcs-info-dir.drv >>> /gnu/store/ndiq7ccmi32rlxdyf52f506jil0zn9p0-ca-certificate-bundle.drv >>> /gnu/store/90gzasiixp9np5m4nn28vbfqd1zd5azq-fonts-dir.drv >>> /gnu/store/3l8kl1b438qr3yk2qca4pzvlpv04q7rc-xdg-mime-database.drv >>> /gnu/store/2brridy714shmik1zksysik36kn2iwsf-manual-database.drv >>> creating manual page database for 23 packages... >>> 22 packages in profile >>> g1@g1 ~/src$ >>> >>> And... watching this, it seems like a long time between ... >>> >>> creating manual page database for 23 packages... >>> >>> ... and ... >>> >>> 22 packages in profile >>> >>> Does it really take this long? If not, can we close the message ... >> >> FWIR it is CPU bound, so your mileage will vary; in my case on an old >> low-power laptop it can take a few seconds for ~65 packages. > > It is taking more like 50 seconds on my 3.4 Ghz server for 33 packages. > >> I wonder why the odd package count mismatch (23 vs 22) ? > > That's my fault. I cut and pasted from two different runs. SORRY! ;-) > OK! No problem; thanks for clarifying it! >> I don't recall observing this while testing (maybe it only happens >> when using the -m option) ? > > No, I get the same effect w/ 'guix package -r foo. 50 seconds for 33 packages on such a powerful machine seems abnormal, unless you have a specific package(s) which would install an unusually large amount of manual pages (which would take more time to be indexed). Ludovic had a way to time the generation of the manual-database derivation; he was using something like [0]: --8<---------------cut here---------------start------------->8--- time guix build --check /gnu/store/rkri628apz2a2i2jvav11ylv2736fvv3-manual-database.drv --8<---------------cut here---------------end--------------->8--- Notice that you need the derivation (.drv) of manual-database rather than the store item ending by manual-database. Unfortunately I'm not aware of how we can easily find the derivation of the corresponding manual-database store item used by the profile (as can be found by: guix gc -R $(realpath $HOME/.guix-profile) | grep manual-database). Maybe Ludovic can enlight us? If you are interested in digging into this further, you could enable debug output for the man-db command used by manual-database profile hook defined in (guix profiles) by replacing the "--quiet" option by --debug. This way you'd see everything man-db might be complaining about. [0] https://lists.gnu.org/archive/html/guix-devel/2017-03/msg00847.html
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